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Cited by 393

The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

Band Gap Narrowing of Titanium Oxide Semiconductors by Noncompensated Anion-Cation Codoping for Enhanced Visible-Light Photoactivity

Zhu, Wenguang, Qiu, Xiaofeng, Iancu, Violeta, Chen, Xing-Qiu, Pan, Hui, Wang, Wei, Dimitrijevic, Nada M., Rajh, Tijana, Meyer, Harry M., Paranthaman, M. Parans, Stocks, G. M., Weitering, Hanno H., Gu, Baohua, Eres, Gyula, Zhang, Zhenyu·2009·Physical Review Letters

Abstract

"Noncompensated n-p codoping" is established as an enabling concept for enhancing the visible-light photoactivity of TiO2 by narrowing its band gap. The concept embodies two crucial ingredients: the electrostatic attraction within the n-p dopant pair enhances both the thermodynamic and kinetic solubilities, and the noncompensated nature ensures the creation of tunable intermediate bands that effectively narrow the band gap. The concept is demonstrated using first-principles calculations, and is validated by direct measurements of band gap narrowing using scanning tunneling spectroscopy, dramatically redshifted optical absorbance, and enhanced photoactivity manifested by efficient electron-hole separation in the visible-light region. This concept is broadly applicable to the synthesis of other advanced functional materials that demand optimal dopant control.

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Crossref · 10.1103/physrevlett.103.226401

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Metadata

Authors
Zhu, W., Qiu, X., Iancu, V., Chen, X.-Q., Pan, H., Wang, W., Dimitrijevic, N. M., Rajh, T., Meyer, H. M., Paranthaman, M. P., Stocks, G. M., Weitering, H. H., Gu, B., Eres, G., & Zhang, Z.
Venue
Physical Review Letters
Published
2009-11-23
Volume
103
Issue
22
Pages
226401-226401
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W1971237728
Cited by
393
References
6
FWCI
11.38
Type
journal article
Language
en
Open access
closed

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